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Homework Help: Help with Collisons

  1. Oct 5, 2009 #1
    1. The problem statement, all variables and given/known data
    hey everybody i got a problem but do not know how to do it, A 2.0 kg frictionless cart is moving at a constant speed of 3.0m/s to the right on a horizontal surface. it then collides with a mass that is at rest. as a result the cart acquires a speed of 1.6m/s. Neglect friction.

    Caluclate magnitude and direction of the velocity of the 2.0 kg cart after the collison
    Calculate mass of the second cart.

    2. Relevant equations
    Im not sure what equations i need to use so thats why i am here.

    3. The attempt at a solution
    No idea of how to solve please help thanks alot.
  2. jcsd
  3. Oct 5, 2009 #2


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    Homework Helper

    Re: Collisons

    Hi Fabio, welcome to PF.

    Which final velocity is given? Cart or mass?
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